Windmill.



PATENTED MAR. 6, 1906.

P; Hi HANGHETT.

WINDMILL.

PPLwATION FILED 01110.10, 1905.

@Jg-gd gy ya@ UNITED sTATEs PATENT oEEIoE.

PHILEMON H. HAN CHETT, OF FAIRBURY, NEBRASKA.

Wl N D Nl l L L Specification of Letters Patent.

Patented March 6, 1906.

Application led January 18, 1905. Serial No. 241,606.

To all whom t may concern.:

Be it knownthat I, PHILEMON H. HAN- CHETT, a citizen of the UnitedStates of America, and a resident of Fairbury, Jefferson county,Nebraska, have invented a new and useful Improvement in Windmills, ofwhich the following is a specification.

The object of this invention is to provide means for preventing unduestrain on parts of the mechanism of a vaneless windmill.

A further object of this invention is to provide a construction forvaneless windmills in which the shifting mechanism or followerhead iscaused to rotate invariably with the wheel-shaft.

My invention consists in the construction, arrangement, and combinationof elements hereinafter set forth, pointed out in my claim, andillustrated by the accompanying drawings, in which- Figure 1 is a sideelevation illustrating portions of a vaneless windmill, the wheel beingremoved. Fig. 2 is an elevation, partly in section, illustrating mylmprovement. Fig. 3is a cross-section of Fig. 2. Fig. 4 is acrosssection similar to Fig. 3, showing a modified construction.

In the construction of the device as shown the numeral 10 designates atower, on which is mounted a main frame 1 1, susceptible of rotation ona vertical axis. Balance weightbars 12 13 are fixed to and projectoutward horizontally from one endl portion of the main frame 11, and abalance-weight 14 is mounted in the outer ends of said bars. Standards15 16 rise from the inner ends of the bars 12 13 and are connected attheir upper ends to the outer ends of the bars by races 17. A wind-wheelshaft 18 is mounted for rotation on a horizontal axis in bearings fixedto and rising from the -main frame 11 and a spider 19, adapted tosupport and carry a wind-wheel of the feathering type, is mountedrigidly on the outer portion of said shaft. A crankplate or wrist-wheelis mounted rigidly on the inner end portion of the shaft 18 and ispivotally connected to and drives a pitman 21, depending through thetower. A collar 22 is mounted| on the outer end portion of the shaft 18loosely and is formed with arms radiating therefrom, thus producing anumbrella-spider adapted to be connected to the blades or fans of thewindwheel by umbrella-rods, (not shown,) whereby in the shifting of thespider along the shaft the wind-wheel may be opened or closed. The hubof the wind-wheel spider 19 extends through the bearing 23 and carriesthe shaft 18 through said bearing.

A follower-head or shifting head 24 is provided and is formed in twomembers or pieces rigidly connected and loosely embracing the shaft 18between its bearings. The followerhead 24 is feathered to the shaft 18for sliding movement thereon and rotation therewith, either by means ofa lug 25 on one member of the head projecting into a groove 26 of theshaft or by means of a'spline 27 on the shaft projecting into a groovein one member of the head. The follower-head 24 is connected by rodsj2829 to the umbrella-spider 22, and said rods extend through apertures ofthe hub of the wind-wheel spider 19 on opposite sides of the shaft 18.By feathering the follower-head to the shaft and extending the rods 2829through apertures in the hub of the wind-wheel spider it is assured thatthe umbrella-spider and follower-head will rotate invariably incoincidence with the shaft 18 and wind-wheel and prevents accidentalstopping or retention of the followerhead, that might twist the rods andprevent proper operation of the machine. The follower-head 24 is formedwith an annular rib 30, and al collar 31, formed in two members rigidlyyet detachably connected, is mounted on and embraces said head, saidcollar formed With an annular groove receiving and permitting rotationof said annular rib and head. Shifting arms 32 33 embrace and arepivotally connected to the collar 31, and said arms are conjunctivelysecured to a shifting bar 34. A lever having three arms 35 36 37 isfulcrumed on the upper ends of the standards 15 16, and the extremity ofthe arm 37 is pivotally connected to one end of the shifting bar 34. Aweight 38 is adjustably connected to the lever-arm 35 and tends to movethe shifting bar 34 and collar 31 outward, While a draft-wire 39 dependsfrom the extremity of the lever-arm 36 through the tower and may bemanually drawn to oscillate the lever in suchv manner as will movethe-collar and shifting bar inward. Since the follower-head 24 is Exedto the umbrellaspider' 22 by the rods 28 29, it follows that anymovement of thefollower-head longitudinally of the shaft 18 will effecta correspond- IOO ing movement of the umbrella-spider and open or closethe fans or blades of the Wind- Wheel.

I claim as my invention- In a Windmill ofthe class described, a shaftmounted horizontally, a Wind-Wheel rigidly mounted on said shaft,pitman-driving rneclianism on said shaft, an umbrella-spider looselymounted on the outer end portion of said shaft, a follower-head Jformedin two parts adapted to embrace said shaft and mounted on and featheredto and arranged for longitudinal movement on and rotation with saidShaft, Said follower-head located the members of the follower-head, rodsconnecting the followenhead and the umbrellaspider, Said rods arrangedon opposite sides of the shaft and extending through the hub of theWind-Wheel, and means for shifting said follower-head longitudinally ofsaid shaft.

Signed by me at Des Moines, Iowa7 this 22d day of July, 1904.

PIIILEMON H. HANCHETT. Witnesses:

S, C. SWEET, R. G. ORWIG.

